Temporary fixation boss and electrical junction box

An electrical junction box comprising:

• a first mounted portion through which an electrical junction box main body is mounted on a first mounting portion of a mounting side;
• a second mounted portion configured to be mounted on a second mounting portion of the mounting side, and to be rotated about the first mounted portion mounted on the first mounting portion until mounted on the second mounting portion,
• wherein a temporary fixation boss is arranged adjacent to the second mounted portion, the temporary fixation boss including:
• a shaft portion having a diameter smaller than a diameter of an insertion hole of the mounting side;
• a flared portion flared singularly or collectively throughout a whole circumference on an outer periphery of the shaft portion and disposed at one end of the shaft portion, said flared portion having a diameter smaller than the diameter of the insertion hole;
• and
• a first claw portion having a projection shape and projected from a part of an outer periphery of the flared portion, and a distance from a shaft center of the shaft portion to a tip of the first claw portion in a radial direction of the shaft portion being longer than a distance from the shaft center to a tip of the flared portion and shorter than a distance from the shaft center to an inner edge of the insertion hole when the shaft center is aligned with the center of the insertion hole, and
• wherein the boss is inserted into the insertion hole arranged adjacent to the second mounting portion of the mounting side from the one end of the shaft portion, and the first claw portion abuts on the inner edge of the insertion hole from a base side of the boss in response to a positional gap between the shaft center of the boss and the center of the insertion hole to prevent the second mounted portion from rotating.